Relativistic Heavy Ion Collider
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. Analytical, empirical and phenomenological aspects of elastic hadron scattering at high energies / Aspectos analiticos, empiricos e fenomenologicos do espalhamento elastico de hadrons em altas energias
We investigate high-energy elastic hadron scattering by means of three different approaches: analytical, empirical, and phenomenological. The first one is characterized by the fundamental principles of analyticity and crossing symmetry, polynomial limits for the scattering amplitude and dispersion relations. In special, for classes of functions of physical i
Publicado em: 2009
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2. Produção de estranheza em colisões de ions pesados relativisticos / Strangeness production in relkativistic heavy ion collisions
Relativistic heavy-ion collisions allow us to study the behavior of nuclear matter at extreme conditions of temperature and energy density. In these conditions, we expect a phase transition of matter where a free state of quarks and gluons would be formed, and that is known as Quark-Gluon Plasma (QGP). With the aim to study this new state of matter and its f
Publicado em: 2008
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3. Produção termica de particulas em colisões nucleares relativisticas / Thermal particle production in relativistic nuclear collisions
Reações nucleares envolvendo núcleos pesados em energia de colisão no limite relativístico são estudadas para conhecer as leis e características da matéria em condições extremas de energia e temperatura. Em uma colisão de núcleos pesados no regime relativístico, milhares de partículas são produzidas. Neste trabalho, estudamos a produção de p
Publicado em: 2008
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4. Heavy-ion collisions at LHC in a multiphase transport model
Using a multiphase transport (AMPT) model that includes scatterings in both initial partonic and final hadronic matters as well as the transition between these two phases of matter, we make predictions on the rapidity distributions and transverse momentum spectra of various hadrons, their elliptic flows, and two-pion correlation functions in ultra-relativist
Brazilian Journal of Physics. Publicado em: 2007-09
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5. Fitted HBT radii versus space-time variances in flow-dominated models
The inability of otherwise successful dynamical models to reproduce the "HBT radii" extracted from two-particle correlations measured at the Relativistic Heavy Ion Collider (RHIC) is known as the "RHIC HBT Puzzle". Most comparisons between models and experiment exploit the fact that for Gaussian sources the HBT radii agree with certain combinations of the sp
Brazilian Journal of Physics. Publicado em: 2007-09
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6. Elastic energy loss in an expanding QGP
The discovery of the jet quenching in central Au + Au collisions at the Relativistic Heavy-ion Collider (RHIC) has provided clear evidence for the formation of strongly interacting dense matter. It has been predicted to occur due to the energy loss of high energy partons that propagate through the quark gluon plasma. Since the medium is not static and it coo
Brazilian Journal of Physics. Publicado em: 2007-07
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7. A produção de dileptons no condensado de vidros de cor
Neste trabalho investigamos a produçaõ de pares de leptons( lepton-antil epton) em colisões proton-proton e proton-núcleo para energias dos aceleradores Relativistic Heavy Ion Collider (RHIC) e Large Hadron Collider (LHC). Estes processos de colisão podem ser dividos entre antes e depois do espalhamento, portanto, pode-se analisar os efeitos de estado i
Publicado em: 2007
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8. Efeitos de alta densidade em processos Drell-Yan de altas energias
Um dos problemas teóricos mais importantes da Física de Partículas de Altas Energias é a investigação de efeitos de alta densidade na Cromodinâmica Quântica (QCD), que é a teoria que descreve as interações fortes. Tais efeitos são importantes pois determinam os observáveis em colisõesde altas energias. Em processos hadrônicos de energia sufici
Publicado em: 2007
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9. Recent results from PHOBOS at RHIC
PHOBOS is one of the four heavy ion experiments currently running at the Relativistic Heavy Ion Collider (RHIC). In this paper we will present some of the current results from PHOBOS: the study of charged multiplicity distribution as function of pseudorapidity and centrality at or = 19.6, 130 and 200 GeV, a
Brazilian Journal of Physics. Publicado em: 2004-09
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10. Perspectives of the ALICE experiment
The Large Hadron Collider, now under contruction at the European Center for Nuclear Research, represents a unique opportunity for Heavy-Ion Physics. It will provide nuclear collisions at a center-of-mass energy 30 times higher then the present Relativistic Heavy Ion Collider at BNL, currelty the highest energy nuclear accelerator. The LHC will open for this
Brazilian Journal of Physics. Publicado em: 2004-03